I did the interview in Hong Kong in Cantonese. There's only one round of interview with a technical interviewer. The interview wasn't much problem. The problem was after the interview, I was asked to complete a task that is said to take ONE WEEK, and I am pretty sure that takes longer than that. Basically I was asked to write a complete mobile application for him, which I suspect is a subtask in one of their projects. It makes me feel like they are looking for free labour instead of hiring a developer. Therefore I rejected to proceed the application.